Well-differentiated liposarcoma of the groin

Liposarcomas are most prevalent in the fifth and sixth decades1 and are the most common soft tissue sarcomas of the lower extremities between the ages of 26 and 45.2 In 42% of cases, they occur in the trunk (often in the retroperitoneum), 41% in a lower extremity (favoring the thigh), 11% in an upper extremity, and 6% in the head and neck region.3 These tumors, which are known to occur in the deep soft tissues, are of primitive mesenchymal cell origin, differentiating into mature adipose tissue.